The Comprehensive TeX Archive Network

The Com­pre­hen­sive TeX Archive Net­work (CTAN) is the cen­tral place for
all kinds of ma­te­rial around TeX. CTAN has cur­rently
5517 pack­ages.
2512 con­trib­u­tors have
con­tributed to it. Most of the pack­ages are free and can be down­loaded and
used im­me­di­ately.

An­nounce­ments on CTAN-an­nounce

You can see what's new and even get in­formed about new or
up­dated pack­ages on CTAN.

Ac­tiv­ity on CTAN

An ac­tive TeX com­mu­nity takes care that CTAN is up­dated and ex­tended
reg­u­larly.
CTAN re­ceives usu­ally more than 100 up­loads per month.

Here ap­pears a re­spec­tive di­a­gram in newer browsers.

Search on CTAN

The con­tents of CTAN can be searched with full-text search.
This search con­sid­ers the de­scrip­tion, the doc­u­men­ta­tion, and
the con­trib­u­tors.

If you want to have finer con­trol on the pa­ram­e­ters of the
search you can use the ad­vanced search
form in­stead.

Browse CTAN

This Web in­ter­face to CTAN pro­vides a view on the di­rec­to­ries
and files in the archive. The files and some di­rec­to­ries as a
whole can be im­me­di­ately be down­loaded. You can im­me­di­ately go
to the

Con­tribute to CTAN

CTAN lives from the con­tri­bu­tions of soft­ware and pack­age con­trib­u­tors.
Thus you are strongly en­cour­aged to sub­mit your con­tri­bu­tion to the
TeX world to CTAN. You can use a Web form to up­load your
con­tri­bu­tion:

Did you know?

TeX

TeX is a type­set­ting pro­gram de­signed for high-qual­ity com­po­si­tion of
ma­te­rial that con­tains a lot of math­e­mat­i­cal and tech­ni­cal ex­pres­sions.
It has been adopted by many au­thors and pub­lish­ers who gen­er­ate
tech­ni­cal books and pa­pers. It was cre­ated by
Pro­fes­sor Don­ald
E.­Knuth of Stan­ford Univer­sity, orig­i­nally for prepa­ra­tion
of his book se­ries
“The
Art of Com­puter Pro­gram­ming”. TeX has been made freely
avail­able by Knuth.

From these ori­gins a whole eco-sys­tem of dis­tri­bu­tions, macro pack­ages,
and sup­port­ing pro­grams has arisen.